n: 40 m: 171 packed: 13 density: 0 nodes: 0 solveTime: 690 buildTime: 20 solved: true
{0,19,24}
{1,13,20}
{2,9,33}
{3,8,26}
{4,17,32}
{5,16,22}
{6,15,29}
{7,12,39}
{10,27,30}
{11,21,25}
{18,28,31}
{23,36,38}
{34,35,37}